Merge remote-tracking branch 'arm64/for-next/core'

diff --cc Documentation/admin-guide/kernel-parameters.txt
Simple merge

diff --cc arch/arm64/Makefile
Simple merge

diff --cc arch/arm64/include/asm/el2_setup.h
Simple merge

diff --cc arch/arm64/kernel/process.c
Simple merge

diff --cc include/uapi/linux/prctl.h
Simple merge